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公开(公告)号：US20230117891A1
公开(公告)日：2023-04-20
申请号：US17965968
申请日：2022-10-14
发明人： Michael Broge , Victor Burgess , Derrick Camenga , Joshua R. Kowalski , Robert S. Laurin , Mark J. Melone
摘要： A zero-turn radius lawnmower includes a chassis having a rear frame, a crossbeam, and a subframe, and a battery receptacle for receiving a battery pack. A first rear suspension cradle is rotatable coupled to the crossbeam on a first end, and is movably coupled to the first side panel on a second end. The first rear suspension cradle supports a first electric motor configured to rotate a first drive wheel supported by the first rear suspension cradle. A second rear suspension cradle is rotatably coupled to the crossbeam on a first end and movably coupled to the second side panel on a second end. The second suspension cradle supports a second electric motor configured to rotate a second drive wheel supported by the second rear suspension cradle. The first rear suspension cradle and the second rear suspension cradle are independently rotatable relative to the rear frame.
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公开(公告)号：US20230055171A1
公开(公告)日：2023-02-23
申请号：US17820158
申请日：2022-08-16
申请人： ISEKI & CO., LTD.
发明人： Taro TSUNASHIMA , Ryutaro MASUDA , Yusuke BABA
IPC分类号： A01D34/64 , A01D34/78 , A01D43/063
摘要： A hood in which a predetermined space is formed is provided in a front portion of a traveling vehicle body, a control portion on which an operator rides is provided on a rear side of the hood, a first electric motor configured to drive rear wheels and a second electric motor configured to drive a work machine are provided on a lower rear side of a control seat of the control portion, and a battery configured to store electric power to be supplied to the first electric motor and the second electric motor is provided in the space formed by the hood.
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公开(公告)号：US20230052504A1
公开(公告)日：2023-02-16
申请号：US17797191
申请日：2021-02-05
发明人： Jia SONG
摘要： The present invention relates to a hybrid power system for a robot or a robotic lawn mower. It comprises at least one generator for generating an electric current; at least one control board being provided to receive the electric current from the generator; and at least one rechargeable battery being connected to and charged by the electric current from the control board, and being charged by the electric current from the generator as well. The generator can he an AC generator or a DC generator, and there may be two generators, and two operation control boards. There are two types of end units, such as a cutting assembly and a moving assembly. At least one of the control boards provides a driving power for driving one of the end units of the robot or the robotic lawn mower, which may be operative under AC or DC. The cutting assembly may include a set of cutting tools and the moving assembly may have a set of moving wheels, which may move in any directions under the control of the control boards.
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公开(公告)号：US11570949B2
公开(公告)日：2023-02-07
申请号：US16684778
申请日：2019-11-15
发明人： Hui Chen , Jiafu Xue , Peng Zhao , Zhizheng Ding , Jing Wang , Zhaochong Liu , Kai Huang
摘要： A lawn mower, wherein the cutter system of the lawn mower needs to judge whether the start pulse and the start signal of the cutter switch are valid at the same time under the condition that the seat switch is closed, and the cutter system will be started, only the two conditions are met at the same time, thus not only improving the safety when the cutter system is started, but also the startup of the cutter system can be completed automatically, saving time and labor, and reducing the operator's operation difficulty.
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公开(公告)号：US11540441B2
公开(公告)日：2023-01-03
申请号：US17073453
申请日：2020-10-19
申请人： MTD PRODUCTS INC
发明人： Axel Schaedler , Peter J. Buchanan
摘要： A high-efficiency blade for a lawn maintenance tool includes a central axis and a mounting portion located on the central axis. The high-efficiency blade includes a cutting blade and a cutting blade sharpened leading edge. A cleaning blade is vertically offset from the cutting blade and is configured to mulch the associated clippings from vegetation and reduce an associated accumulation of clippings on an underside of an associated mower deck. The lawn maintenance tool can also include a deck having a separation distance between the cleaning blade and an underside of the deck. The deck can include an elevation change to vary the separation distance. The deck and high-efficiency blade can also include a forward or rearward tilt.
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公开(公告)号：US20220408649A1
公开(公告)日：2022-12-29
申请号：US17835690
申请日：2022-06-08
发明人： Dezhong Yang , Yangzi Liu , Li Li , Ju Li
摘要： A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device configured to supply power to at least one of the walking motor or the driving motor, the first energy storage device including at least one first energy storage unit, the first energy storage device detachably mounted to the frame and enabled to supply power to a handheld power tool when detached from the riding lawn mower; and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor, the second energy storage device including at least one second energy storage unit; wherein an energy density of the second energy storage unit is different from an energy density of the first energy storage unit.
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公开(公告)号：US20220361401A1
公开(公告)日：2022-11-17
申请号：US17869830
申请日：2022-07-21
发明人： Yufei Ren , Yang Li , Ronggen Zhu , Haishen Xu , Rui Zhang
摘要： A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.
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公开(公告)号：US20220354052A1
公开(公告)日：2022-11-10
申请号：US17734323
申请日：2022-05-02
申请人： Black & Decker Inc.
IPC分类号： A01D34/78
摘要： A power tool is provided including a housing, a brushless direct-current (BLDC) motor, and a gear assembly. The motor includes a stator having an inner stator, a rotor shaft extending along a center axis and including a first bearing and a second bearing; an outer rotor, a first end cap, and a second end cap. The first end cap includes a radial back plate having a center opening in the radial back plate through which the rotor shaft extends and pins projecting around the rotor shaft and parallel to the rotor shaft. The gear assembly is mounted on the first end cap and includes planetary gears supported by the pins in engagement with the rotor shaft.
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公开(公告)号：US11483969B2
公开(公告)日：2022-11-01
申请号：US16492371
申请日：2018-03-09
摘要： An electric powerhead includes a housing including a mounting assembly, wherein the mounting assembly includes a mounting plate and a mounting insert. The mounting plate includes a shaft opening and a plurality of first openings arranged in a standard vertical shaft engine mounting pattern and the mounting insert includes a plurality of second openings aligned with the plurality of first openings. The electric powerhead further includes an electric motor positioned within the housing, wherein the electric motor includes an output shaft that extends through the shaft opening of the mounting assembly and wherein the output shaft is configured to rotate about an axis of rotation.
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公开(公告)号：US11425856B2
公开(公告)日：2022-08-30
申请号：US16874456
申请日：2020-05-14
发明人： Jeffrey Zeiler , Robert J. Koenen
摘要： A zero turn radius mower including a pair of rear drive wheels, a mowing deck including multiple cutting blades, an electric storage battery, a pair of electric wheel motors each operable to rotate one of the rear drive wheels, multiple electric blade motors each operable to rotate one of the multiple cutting blades, and a master controller in communication with each of the pair of wheel motors and the multiple blade motors. The master controller is operable to control a rotational speed of each of the pair of wheel motors and the multiple blade motors. The master controller is operable to stop rotation of the cutting blades when the wheel motors are operating below a threshold speed.
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